The
Type-C submarines were divided into three classes: • • • . However, the
Vessel number 379-class was never built.
Type-C (I-16 class) Project number
S38 and
S38B (Latter batch). They were based on the
I-7 class. Eight boats were built between 1937 and 1944 under the
Maru 3 Programme (Boats 44 - 48) and the
Maru Kyū Programme (Boats 376 - 378). • Boats in class
Type-C Mod. (I-52 class) Project number
S37D. Twenty boats were planned under the
Maru Tsui Programme (Boats 625 - 632) and the
Kai-Maru 5 Programme (Boats 5141 - 5155). According to their Project number, they were one of the variants of the
Type-B submarine. Seventeen boats were cancelled in late 1943, because the IJN was planning to build the which was to become the primary submarine in 1945. • Boats in class
Type V22B Project number
S49B. Twenty eight boats were planned under the
Maru Kyū Programme (Boats 379 - 381) and the
Kai-Maru 5 Programme (Boats 5156 - 5180). All boats were cancelled in late 1943, because the IJN was planning to build the . • Boats in class ==Characteristics==